Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
  • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
  • C08F220/04—Acids; Metal salts or ammonium salts thereof
  • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
  • C01B32/00—Carbon; Compounds thereof
  • C01B32/15—Nano-sized carbon materials
  • C01B32/182—Graphene
  • C01B32/184—Preparation
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
  • C01B32/00—Carbon; Compounds thereof
  • C01B32/15—Nano-sized carbon materials
  • C01B32/182—Graphene
  • C01B32/194—After-treatment
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
  • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
  • C08F220/10—Esters
  • C08F220/12—Esters of monohydric alcohols or phenols
  • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
  • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F292/00—Macromolecular compounds obtained by polymerising monomers on to inorganic materials

Definitions

• the present invention relates to graphene having a functional group capable of improving the dispersibility of graphene bonded to a surface of 10 graphene and a method for producing the graphene.
• Graphene carbon atoms 2 is a semi-metallic material yirumyeonseo an array coupled to a hexagonal shape by the? 2 coupled on the dimension having a thickness corresponding to the carbon atom layer. Recently, well characteristics of the fin sheet has a carbon atom layer of even 15 may evaluate the result of movement of electron is also reported to be expressed in very good electrical conductivity as about 50,000 (L or more ⁇ bar. In addition, graphene is characterized by structural chemical stability and excellent thermal conductivity. It is also easy to fabricate one- or two- dimensional nanopatterns consisting of only 20 relatively small elements, carbon. Graphene is expected to replace silicon-based semiconductors and transparent electrodes due to its electrical, structural, and chemical properties, and it is expected to be applicable to flexible electronic devices due to its excellent mechanical properties.
• the oxidation reaction progresses not only in the graphene edge but also in the internal structure of graphene, so that the structure and chemical properties peculiar to graphene are lost, and the environment 5 problems of pollution also occur. Therefore, it is required to develop a surface modification method capable of introducing a specific functional group into the graphene surface while maintaining the structural and chemical characteristics of the graphene.
• the graphene surface is modified by 0 Diels-Alder reaction using non-oxidized graphene with maleic anhydride and maleimide.
• further polymer polymerization and the like can not be performed, and there is a limit to functionalizing the graphene.
• Example 5 can ways to graft an effective polymer for pin surface research results, a modification to primarily graphene surface through the Diel s-Alder reaction as described below and then, well introduced into the pin surface
• the present invention has been accomplished by confirming that the above can be achieved by a method of polymerizing a double bond and a secondary monomer.
• the present invention is to provide a graphene having a functional group capable of improving the dispersibility of graphene bonded to the surface of graphene.
• the present invention provides graphene having a polymer structure represented by the following formula (1) or (2) bonded to a graphene surface:
• 3 &gt is 0 2-5 alkylene
• 1 is an integer of 1 to 10000
• 11) 2 is an integer of 1 to 10000
• 1 is an integer of 1 to 10000
• the polymer structure of formula ( 1) is graphene bonded to the graphene surface
• the present invention provides 1) graphene and di-cyclopenta reacting a diene, a structure of the formula (I) graphene preparing a graphene bonded to the surface, and 2) the graphene and producing in the first step wherein the polymer structure represented by the following formula 1, comprising the step of reacting a compound represented by the formula 3 ⁇ 4 Yes provides a method for producing a graphene bonded to the pin surface.
• the polymer structure of formula (I) may have one or a plurality of Yes is coupled to the pin surface.
• the structures of Formula 1 may be the same or different from each other.
• II is preferably an integer of 0 to 10 , and is determined according to the degree of reaction between 15 graphene and dicyclopentadiene.
• I I is an integer from 1 to 9, from 2 to 8, or from 3 to 7 .
• Is preferably an integer of 1 to 1000 , and is determined depending on the degree of reaction of the compound represented by the above formula.
• 3 ⁇ 4 and 3 ⁇ 4 is hydrogen, methyl or independently of each other.
• the 3 ⁇ 4 is hydrogen, 2- ethylnucleosyl octadecyl, or 2- 25 hydroxyethyl.
• the 3 ⁇ 4 is ethylene (- vs. 2- to 2 -) .
• 1 is an integer of 1 to 100 , or an integer of 1 to 10 .
• the graphene molecular structure is bonded to the graphene yes the graphene surface of the polymer structure of formula (2) coupled to the pin surface of a general formula (2), and in the 30 general formula (1) means that the polymer repeat unit more. Therefore, the added 2019/103535 1 » (: 1 ⁇ 1 ⁇ 2018/014547 The remainder of the repeating unit can be applied without restriction as described above.
• the present invention provides a method for producing graphene comprising the steps of: 1 ) reacting graphene and dicyclopentadiene to prepare graphene having a structure represented by the following formula ( 2) bonded to a graphene surface; Yes coupled to the surface of the polymer structures of Formula 2 graphene comprising the step of reacting a compound represented by: and 2) the prepared graphene compound and represented by the formula 3 ⁇ 4 formula (3) (in step 1 A method of manufacturing a pin is provided.
• II 3 ⁇ 4, 3 ⁇ 4, 1? ' 2, 3, " 3 " and * are as defined above.
• II is an integer of 0 to 10, depending on the degree of reaction between graphene and dicyclopentadiene .
• 2019/103535 1 » (: 1 ⁇ ⁇ 2018/014547
• Is is an integer of 1 to 9, 2 to 8, or 3 to 7. Is preferably an integer of 1 to 1000, and is determined according to the degree of reaction of the compound represented by the formula (3).
• H is an integer from 1 to 100.
• 2 is an integer of 1 to 1000,
• this 2 is an integer of 1 to 100.
• the anthracite and the anion 2 are each independently hydrogen or methyl.
• each of 3 ⁇ 4 and 3 is independently hydrogen, 2-ethylpyridine, octadecyl, or 2-hydroxyethyl.
• the urethane is ethylene (-substance 2- suppression 2- ).
• 1 is an integer of 1 to 100, or an integer of 1 to 10.
• the weight of the polymer relative to the total weight of the graphene is 1 to 20 wt % .
• the polymer-graft graphene prepared according to the present invention is characterized in that a polymer capable of improving dispersibility is grafted on the graphene surface while retaining the characteristics inherent to graphene and is excellent in dispersibility in a solvent .
• a conductive material for a composite or a battery, a slurry, and the like is a conductive material for a composite or a battery, a slurry, and the like.
• the polymer-grafted graphene according to the present invention is a polymer-grafted graphene having a graphene structure 2019/103535 1 » (: 1 ⁇ ⁇ 2018/014547
• Fig. 1 shows the result of thermogravimetric analysis of the pin prepared in the example of the present invention (Yusai 3113 1 7 3 , show).
• Acrylic acid (C 801 (1,) in the reagents used was purchased from Samseonjeon and used.
• 2 1 ⁇ 2 (Urine 0 ⁇ 761 : 1 17 1 ⁇ 1), 2 6 1; 1 3 ⁇ 4 , 11 16 7 1) were purchased from 1 11113 and used.
• reaction was carried out at 80 ° C for 15 hours, cooled to room temperature, filtered,
• Example 6 1: 1 ( 0 & le ; (1 607130'71 6 ) - 3 £ 1; -0 3 (Me 3 Show- ⁇ *)
• the polymer produced in the preceding embodiment - the graft graphene, to each dispersion in a solvent, such as Table 1 to evaluate the degree of dispersion dispersity evaluation Polymer-30 was mixed with 40 mg graft graphene in a solvent of 4 g Min, and evaluated based on the time during which the dispersion was maintained without causing precipitation in the dispersion.
• the evaluation criteria are as follows. For comparison, GNP used as a starting material in the production example was evaluated as a comparative example.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Inorganic Chemistry (AREA)
• Materials Engineering (AREA)
• Nanotechnology (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Carbon And Carbon Compounds (AREA)
• Graft Or Block Polymers (AREA)

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• 2017
  • 2017-11-23 KR KR1020170157400A patent/KR102161712B1/ko active IP Right Grant
• 2018
  • 2018-11-23 JP JP2019553263A patent/JP6797441B2/ja active Active
  • 2018-11-23 WO PCT/KR2018/014547 patent/WO2019103535A1/ko unknown
  • 2018-11-23 EP EP18880161.7A patent/EP3584218B1/en active Active
  • 2018-11-23 US US16/496,991 patent/US11066304B2/en active Active
  • 2018-11-23 CN CN201880025388.7A patent/CN110573456B/zh active Active

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